woodruff



itbtitmif gin-tea Letters Patent No. 106,528, dated August 16, 1879.

'VBNTILATOR FOR STOVE-PIPEEi.

The Schedule referred to in these Letters Patent and making part of the same.

Ohio, have invented certain new and, useful Improvements in Ventilators for Stove-Pipes; and I do here by declare that the following is a full, clear, andexact description thereof, reference being bad to the accompanyingdrawings and to the letters of reference marked thereon.

The nature of my inventioncousists in the means of securing together the parts of ventilators for stovepipes, by providing the upper and lower plates with two or more project-ions, having recesses therein, in

which lugs are formed by indenting the parts of the band connecting the plates, which are immediately over the recesses in the projections on the plates, and then filling them with solder, all of which will be more fully hereinafter describcd,so as to enable those skilled in the arts to make and use my invention.

In the drawings- Figure l is a view representing my invention when perfected-and ready for use, the bottom of the ventilator being'turned up;

Figure 2 is a vertical section; and

Figure 3 a side elevation of my ventilator.

v A and A are thin cast-iron annular plates a-nd differfrom each-otheronly in one (A) of them having a greater circumference than .the' other, A. Plate A, having the greater circumference, is made the top of the ventilator, and'the ventilator is supported and held in position by plate A. 'lhe plates have their inner edges, next to the stove-pipe, (shown by a red circle in fig. 1,). serrated; The openingsor intervals in the serrated edges serve as passages through which a current of air may pass between the band 0 and the stove-pipe, and thus providing a second current of cold air to assist in cooling the ventilator. v

-A series of holes, a, is made about half an inch from the inner edges of the plate, in casting, and serve as passages for a current of cold air, to cool the venti lator.

On each side of these holes a, next to the inner and outer edges of the plates, are annular flanges b and b, projecting up from the plates.

()n the inner side of flanges b the band C, which is made of tin, is placed, and the flanges b' and- I) serve as braces to hold the band C in place.

The flanges b and I) each have two or more projectious, (l, (l, and d castwvith them, having braces extending back to flanges b';-.aud on the outer side of these projections dare made recesses, which are to receive the lugs c,- whioh project from the inner side oi the band B, and inade by indenting the space on band 13, immediately covering the recesses inprojec tions (Z, and the filling such indentations with solder, to make the lugs c stronger and more durable.

' Theadvantages of my invention mainly consist in the simple manner,ofconnecting the parts of the ventil-ator" together, and providing a second current of cold air to assist'in cooling the ventilator.

Having thus fully described my invention,

\Vhat I claim as new, and desire to secure by Let, ters Patent, is-- 1. The plates A and A, with rims b b and b b, lugs or projections countersunk, in combination with rims O O and I) I), constructed substantially as described, and for the purposes set forth.

2. The plates A A, fastened together by means of countersunk lugs d and indentations c 'c, filled with soldensubstantially as described, and for the purposes set forth.

In testimony that I claim the above-described certain new and useful improvements in ventilatorsfor stove-pipes, I have hereunto signed my name this 4th day 0t August, 1868.

Witnesses: O. D. WOODRUFF.

'Or'ro REIDEIMEISTER, MAS. DOYLE. 

